thread.getGlobalAddress
| Syntax |
thread.getGlobalAddress (name)
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| Params |
name is the name of a variable that's global to your thread. It may or may not already exist.
|
| Action |
Get the address of the global variable.
|
| Returns |
An address.
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| Examples |
thread.getGlobalAddress ("myGlobal") //get the address of a thread global » @_myGlobal_
thread.getGlobalAddress ("myGlobal")^ = clock.now () //create and/or set the value of a thread global
|
| Notes |
Sometimes you want to write code that has pagetable-like behavior, but you're not running in a website framework context. You can create a thread-specific global table or other global variables using this verb, and scripts that get called during the execution of the thread can reference these thread globals. About scope: if script abc sets a global using this verb, then abc calls script def -- def can get and set that global via this verb. However, if def creates a global, then returns control to abc, the global will no longer exist, so abc will not be able to reference it. This verb builds on a little-known feature of Frontier, that variables with names that start and end with an underscore (_) are global to the thread. However, counting on this behavior is not recommended -- which is why this verb exists. (So we can change the underlying implementation without changing the API.) This verb is new in Frontier 7.1.
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| See Also |
html.getPageTableAddress
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